GKFix MCQ Question

What is the equilibrium constant expression for the reaction 3A(g) + B(g) ⇌ 2C(g) + D(g)?

• A. [A]^3[B] / ([C]^2[D])
• B. [C]^3[D]^2 / ([A]^2[B])
• C. [C]^2[D] / ([A]^3[B])
• D. [A]^2[B]^3 / ([C]^2[D])